<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8"/>
    <title>Title</title>
</head>
<body>
<div th:fragment="head">
    this is head !<br/>
    <a href="/index.html">首页</a><br/><br/>
    <a th:href="@{/userManage}">用户管理</a><br/><br/>
    <a th:href="@{/logout}">退出</a>
</div>
</body>
</html>